unsigned long nr_segs, loff_t pos)
{
struct file *filp = iocb->ki_filp;
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(filp);
struct pipe_inode_info *pipe;
int do_wakeup;
ssize_t ret;
unsigned long nr_segs, loff_t ppos)
{
struct file *filp = iocb->ki_filp;
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(filp);
struct pipe_inode_info *pipe;
ssize_t ret;
int do_wakeup;
static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(filp);
struct pipe_inode_info *pipe;
int count, buf, nrbufs;
pipe_poll(struct file *filp, poll_table *wait)
{
unsigned int mask;
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(filp);
struct pipe_inode_info *pipe = inode->i_pipe;
int nrbufs;
static int
pipe_read_fasync(int fd, struct file *filp, int on)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(filp);
int retval;
mutex_lock(&inode->i_mutex);
static int
pipe_write_fasync(int fd, struct file *filp, int on)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(filp);
int retval;
mutex_lock(&inode->i_mutex);
static int
pipe_rdwr_fasync(int fd, struct file *filp, int on)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(filp);
struct pipe_inode_info *pipe = inode->i_pipe;
int retval;
{
int ret = -ENOENT;
+ if (!(filp->f_mode & (FMODE_READ|FMODE_WRITE)))
+ return -EINVAL;
+
mutex_lock(&inode->i_mutex);
if (inode->i_pipe) {
err = -ENFILE;
f = alloc_file(&path, FMODE_WRITE, &write_pipefifo_fops);
- if (!f)
+ if (IS_ERR(f))
goto err_dentry;
f->f_flags = O_WRONLY | (flags & (O_NONBLOCK | O_DIRECT));
res[0] = alloc_file(&path, FMODE_READ, &read_pipefifo_fops);
- if (!res[0])
+ if (IS_ERR(res[0]))
goto err_file;
path_get(&path);
*/
struct pipe_inode_info *get_pipe_info(struct file *file)
{
- struct inode *i = file->f_path.dentry->d_inode;
+ struct inode *i = file_inode(file);
return S_ISFIFO(i->i_mode) ? i->i_pipe : NULL;
}